/**
 * Created with Intellij IDEA.
 * Description;
 * User:墨琦
 * Data:2023-02-26
 * Time:10:13
 */
interface OneParameterReturn{
    int text();
}
public class Text {
    public static void main(String[] args) {
        int a=20;
        OneParameterReturn fw=()->{
           return a;
        };
        fw.text();
    }

}
